Real estate prices in Altenau are influenced by several key factors, including location, property condition, and local amenities. Properties situated closer to the scenic Harz National Park or near popular hiking trails generally command higher prices due to the attractive natural surroundings and outdoor recreational opportunities. The condition and age of homes also play a critical role; older properties may be less expensive but could incur higher renovation costs. Additionally, local amenities such as schools, shops, and public transport accessibility significantly affect pricing. For instance, homes near the center of Altenau that offer easy access to these services tend to be more desirable and thus more expensive. Seasonal tourism also impacts the market, with vacation rentals peaking during summer and winter months, leading to fluctuating prices based on demand.